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1
QQ
3 7 63 1515 0
A
NO 5.1CH AUDIO ON
PLAYBACK
Is there AUDIO signal at
pins 7 and 8 of IC8003,
IC8004 and IC8005 ?
B
Is there waveform at
pins 1, 2 and 3 of IC8003,
IC8004 and IC8005 ?
C
TE
L 13942296513
Change IC4002.
NO OPTICAL OUT
D
Is there
voltage at pin 2 of OS8101
about 5 V?
E
Is the waveform
at pin 1 of OS8101
about 2.5 V ?
www
Change OS8101.
F
26
1
http://www.xiaoyu163.com
2
Yes
No
Yes
Is there voltage at pin 6
of IC8003, IC8004 and
No
No
Yes
Yes
No
x
ao
y
.
i
2
http://www.xiaoyu163.com
3
8
No
IC8005 about 5 V ?
Yes
Q Q
3
6 7
Change IC8003,
IC8004 and IC8005.
u163
DV-49AV
3
4
2 9
9 4
Check J8001, J8002 and
peripheral circuit.
Check AT+5V.
1 3
1 5
0 5
8
2 9
Check P.CON +D5V line.
REFER TO "NO DIGITAL
AUDIO ON PLAYBACK OF
COXIAL JACK"
m
co
.
4
2 8
9 9
9 4
2 8
9 9
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